Seiko Chronograph Tachymeter Quarz SSB317 SSB317P1 SSB317P Herrenuhr de
Daniel Cuthbert on Twitter: "Well 8 weeks and it finally arrived: my custom Seiko tachometer watch, modded and tweaked to what I wanted. I'm loving the watch hacking community at the moment
REVIEW: BRAND NEW TACHYMETER CHRONOGRAPH SEIKO SSB039P1 BLUE DIAL MENS WATCH - YouTube
Seiko Men's Chronograph 100m Tachymeter Quartz Watch